5646504221 has 2 divisors, whose sum is σ = 5646504222. Its totient is φ = 5646504220.

The previous prime is 5646504203. The next prime is 5646504233. The reversal of 5646504221 is 1224056465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5627100196 + 19404025 = 75014^2 + 4405^2 .

It is a cyclic number.

It is not a de Polignac number, because 5646504221 - 2²² = 5642309917 is a prime.

It is a super-3 number, since 3×5646504221³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5646504271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2823252110 + 2823252111.

It is an arithmetic number, because the mean of its divisors is an integer number (2823252111).

Almost surely, 2^5646504221 is an apocalyptic number.

It is an amenable number.

5646504221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5646504221 is an equidigital number, since it uses as much as digits as its factorization.

5646504221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 5646504221 is about 75143.2247178679. The cubic root of 5646504221 is about 1780.7100879604.

The spelling of 5646504221 in words is "five billion, six hundred forty-six million, five hundred four thousand, two hundred twenty-one".